一、概述近些年来,光纤制造技术取得了惊人的发展,光纤应用技术的研究也随之活跃起来,正象表1所表明的那样,光纤不仅损耗低、频带宽,而且直径小、重量轻、无电感应、具有良好的可挠性、耐水性、耐火性和绝缘性。因此,光纤不仅可以做为传输信息的介质,在通讯、有线制导等领域大显身手,而且还为传感技术提供了新的手段。光纤 I. Overview In recent years, optical fiber manufacturing technology has made astonishing development, optical fiber application technology research also will be active, as shown in Table 1, the optical fiber not only low loss, wide frequency band, but also small diameter, light weight , No induction, with good flexibility, water resistance, fire resistance and insulation. Therefore, the optical fiber can not only be used as a medium for transmitting information, but also play an active role in fields such as communications and wired guidance, and also provide new means for sensing technology. optical fiber